Question

Two objects are connected to a rope, and the rope is hung over a pulley connected...

Two objects are connected to a rope, and the rope is hung over a pulley connected to the ceiling, as shown in the figure below.

Two objects, labeled m1 and m2, are connected to a rope which is hung over a pulley connected to the ceiling. The pulley is of mass M and radius R. An object labeled m1 hangs suspended off the surface on the left side of the pulley. An object m2 is on the right side of the pulley and rests on a surface below. m1 is larger than m2.

The masses of the objects are m1 = 17.0 kg and m2 = 11.0 kg, the mass of the pulley is M = 5.00 kg, and the radius of the pulley is R = 0.300 m. Object m2 is initially on the floor, and object m1 is initially 5.00 m above the floor when it is released from rest. The pulley's axis has negligible friction. The mass of the rope is small enough to be ignored, and the rope does not slip on the pulley, nor does it stretch.

(a)

How much time (in s) does it take object m1 to hit the floor after being released?

Δt1 =  s

(b)

How would your answer to part (a) change if the mass of the pulley were neglected? (Enter the time, in seconds, it takes object m1 to hit the floor if the mass of the pulley were neglected.)

Δt2 =  s

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